Lock.



No. 802,240. PATENTED 00T. l?, 1905. G. SALVIOLO.

LOCK.

APPLIOATION FILED JAN. 29, 1904.

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GARMIN() SALVIOLO,

LUC K..

Specification of Letters Patent.

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or New YORK, N'. Y.

Patented Oct. 17, 1905.

Application filed January 29, 1904. Serial No. 191,107.

To MZ?! 1x1/wmf il; rita/y concern:

Be it known that I, CARMINo SALvIoLo, a subject of the King of Italy, and a resident of the borough of Manhattan, in the county of New York and State of New York, have invented a new and useful Improvement in Iiocks, of which the following is a specification.

M y present invention pertains to locks, and especially to such as are intended for use in connection with trunks, chests, or other receptacles, which are hereinafter' collectively designated as "coffers and which are closed by lids which are hinged thereto.

Une of the objects of this invention is to provide a lock the mechanism of which shall be so designed and constructed as to perform the dual function of a dead-lock and of a spring-latch-that is to say, the lock of my invention may be so arranged as to properly engage a lid of a Colfer and prevent the latter from being opened, the lock itself being at the time unlatchable without the use of a key, or said lock may, however, be so adjusted that when it engages the lid of a coffer it cannot be unlocked without the use of a key.

In the drawings, Figure l is a front elevation of a lock and connected parts. Fig. 2 is a rear elevation of a lock-plate and parts attached thereto. Fig. 3 is a front elevation of a similar lock-plate with the cap, tumblerlatch, and stop-plate removed. Fig. et is a similar view showing the tumbler-latch, the spring therefor, and the stop-plate in position. Fig. 5 is a vertical section on line a' in of Fig. l. Fig. 6 lsadetail of the key. Fig.

7 is a cross-section on linege/ z/ of Fig. 1. Fig. 8 is a detail of the catch-plate. Fig. 9 is a detail of the catch, and Fig. l0 is a`detail of the cap.

Like reference characters designate like parts throughout the several Views,

Referring to the drawings, a lock-plate 2 of suitable shape is hinged at 3 to a base-plate 4 in any suitable manner or that hereinafter set forth. The edges of the lock-plate Q except that adjacent the hinge are provided with a back-turned liange 2 and is apertured at 2H to receive rivet-lugs 5', extending from the walls of cap 5. The more or less circular portion of the lock'- plate 2 is provided with a centrally-located circular perforation, in which is 'rotatably mounted a spindle 6. An o]icratingplate 7 is rigidly attached to the spindle 6 or may be integral therewith and abuts the front surface of the lock-plate 2, the spindle 6 projecting forwardly of said plate 7 some distance, however.

Immediately behind the lock-plate 2 and abutting its rearward surface a latch S is rigidly secured upon the spindle 6. The operating-plate 7 and the latch 8,1espectively abutting the forward and rearward faces of the lock-plate Q, prevent any axial movement of the spindle 6 and parts carried thereby. The latch 8 is formed with a tongue 8'. which is preferably bent at right angles to form an offset and engaging member 8, the latter being' beveled upon a radial face, which is adapted to contact with the complementary face of a catch 9 upon the catch-plate 9. A spring l0 is preferably provided with a lateral projection 10, which is headed over through a perforation in the lock-plate 2, said spring' l0 being bent to bear upon a tangential or radial face 8" upon the latch 8 and to exert its tension to carry the latch 8 or to maintain the same in its prime position. Vhilc the lateral projection l0 forms afulcrum and holding member for spring l0, I prefer to extend said spring so that it bears upon the iange 2 of the lock-plato 2, thereby relieving said projection l0 of the greater part of the working strain put upon said spring. A stud 1l. rigidly upstanding from the forward face 0f the lock-plate 2, is adapted to be contacted by a radial face 7' ofthe operating-plate7 and determines the locking or prime position of the latch 8.

The operating-plate 7 is provided with aradially-projecting lever 7, preferably integral therewith and having a linger-piece by which the latch 8 may be oscillated to or from its prime position. The lever 7'l extends without the cap 5 through a slot 5" in the wall thereof, permitting of the required oscillation. The operating-plate 7 is further provided with a slot 7 in the form of, an arc about the spindle 6, into which slot a ward 'l2' of the key 12 is adapted to extend and in which said ward travels until it contacts the end of said slot and moves the operating-plate to move the latch 8. A lug 13 is struck up or otherwise provided upon the operating-plate 7 for the purpose hereinafter described.

A pawl 14 is pivoted on a stud ll', rigidly upstanding from the lock-plate 2, which pawl is adapted to engage a tooth lit on the periphery of the operating-plate 7 for the purposes hereinafter set forth. Pawl le is prol vided with a lever ILL, with linger-piece exl tending through a slot 5 in cap 5 1u asimi- IOO IIO

lar manner to that of lever 7". An upstanding lug 14' is also provided on pawl 14.

Astop-plate 15 is perforated to lit over studs 11 and 11' and also over another stud 11, rigidly upstanding from the lock-plate 2, said stop-plate 15 being' adapted to lie upon the operating-plate 7 and pawl 14 and provided with a key-aperture 15', suited to the wards of the key at all positions thereof, and an aperture 15 through which lug 14' projects and in which said lug may freely play. The stopplate 15 is also provided with a slot 15' in the form of an arc about the spindle 6, through which slot 15 the lug' 13 on operating-plate 7 projects and freely plays. lt will be seen that the studs 11, 11, and 11ll prevent any movement of the stop-plate 15 aboutspindle 6.

A tumbler-latch 16 is pivoted on stud 11 and is provided upon its shorter end with a projection 17/, which is adapted to contact a stop 17, struck up from or otherwise rigidly provided upon the stop-plate 15 to limit the outward movement of said shorter end, and consequently to limit the inward movement of the longer end, of said tumbler-latch. One end of a spring 10 bears upon the inner surface of the projection 17/ and is fulcrumed first upon the outer side of the stud 11, and linallyits other end is sprung against the outer side of the lug 14 on pawl 14. This disposition of the spring 10 causes the pawl 14 to be normally held against the operating-plate 7 in its prime position to engage tooth 14 and the longer end of tumbler-latch 16 to he normally maintained in its prime or inward position.

Upon the longer end of tumbler-latch 16 is provided a hook 16, which is adapted to engage the lug` 13 when both the operating-plate 7 and the tumbler-latch 16 are in their prime positions, when the operating-plate 7, and consequently the latch 8,will be locked against movement by the lever 7. The outer end of the hook 16' is beveled to permit the tumblerlatch 16 to ride up and allow the lug 13 to enter the embrace of the hook.

The inner edge of the tumbler-latch 16 presents when said latch is in its prime position a curve about the spindle 6, commencing just free of the ward end of the keyhole and spirally approaching the said spindle 6 clockwise, so that it will be seen that when the key is inserted and turned the proper ward or wards will gradually throw the tumbler-latch from its prime position and release the lug 13. At the end of said spiral curve the tumbler-latch is sharply beveled to permit the tumbler-latch to ride over the wards of the key as the key is turned back.

As it is thought the timing and coaction of the parts will be more fully appreciated in a description of the operation, the operation is as follows: Considering the latch in its full without the aid of the key, as the hook 16 of the tumbler-latch 16 prevents movement of the latch by lever 7l The key being inserted and turned clockwise, the tumbler-latch is first lifted and the hook freed from the lug 13 on the operating-plate. Then the proper ward or' the key engages the end of the-slot 7 and turns the operating-plate and latch to a position where the falling of the tumblerlatch does not cause the hook to engage the lug 13. Just at this moment the pawl 14 has ridden over and fallen behind the tooth 14', so that a return of the operating-plate to the full locking position is impossible without irst releasing the pawl by hand. lterm this position the semilocking position, as the latch-tongue 8 is still engaging the catch 9 on catch-plate 9. A further clockwise movement of the key will oscillate the latch out of engagement with catch 9, unlocking the coffer. Now if the key be turned anticlockwise and withdrawn the latch will only return to the semilocking position, and should it be engaged with the catch it may be opened by turning the lever 7, and this condition will continue, the device simply actingl as a springlatch until the pawl 14 is released by operating the lever 14", when the latch will return to the full locking position and be opened only by the key.

1n some instances it may be preferable to bevel the end of hook 16 so sharply that spring 10 will not urge the operating-plate with enough force to cause the tumbler-latch to ride over the lug 13. and in such case the directions ot' movement ol' the levers 7 and 14 in releasing the pawl and returning' the latch enable both to be operated by pinching the two between the thumb and foretinger.

A plurality of tumblers, such as 16, may be used in connection with suitably-formed wards upon the keys.

lt is obvious that various departures may be made from the illustrated structure without departing from the spirit of my invention.

I claim as new and as my invention- 1. In combination, a lock-plate, a spindle extending through a latch secured to the spindle, a projection on the periphery of the operating-plate, a pawl carried by the lock-plate to engage the projection of Ythe operatingplate, and an operating-lever carried by the pawl.

2. In a combined spring-latch and dead-lock, the combination of a pivoted latch having a substantially radial hand-lever and arranged to be operated either by said lever or by a key, of a key-releasable tumbler-latch arranged to normally lock said latch against hand operation when said latch is in its iull locking position and a pawl havingasubstantially radial hand-lever and arranged to normally permit the return of said latch to a semilocking' position and prevent said return to said full locking position.

3. ln a combined spring-latch and dead-lock,

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prevent said return to said full locking position.

4. In a combined spring-latch and dead-lock, the combination with a lock-housing of a latch outside of said housing, an operating-plate within said housing, a spindle rotatably mounted in the wall of said housing and rigidly conneeting said latch and operating-plate, a handie projecting from said operating-plate outside of said housing, a tumbler surface or surfaces upon said operating-plate adapted to he engaged by a ley'inserted and turned in said housing to rotate said operating-plate and said latch, a key-releasable spring tumbler-latch normally adapted to locl; said operating-plate against rotation in its full locking position, a spring-pawl normally adapted to permit the return of said operating-plate to a semilocking position and prevent said return to a full locking position and a handle on said pawl projecting' without said housing.

5. ln combination, a lock-plate, a spindle extending' through a latch secured to the spindie, an operating-plate on the spindle, a projection on the periphery oiE the operatingplate, a pawl carried by the lock-plate to engag'e the projection of the operating-plate, a lug on the pawl, a stop-plate having a slot a1'- ranged over the operating-plate, the lug of the pawl projecting through the slot, and a spring carried by the stop plate bearing against the lug, to hold the pawl normally in engagement with the periphery of the operating-plate.

6. In combination, a lock-plate, a spindle mounted therein, a latch on the spindle, an operating-plate on the spindle, a lug on the operating-plate, a projection on the operatingplate, a pawl pivoted to the lock-plate to engage the projection ot' the operating-plate, a lug on the pawl, a stop-plate having' slots arranged over the operating-plate, the lug of the operating-plate passing' through one of the slots and the lug of the pavvl passing' through another, a tumbler carried by the stop-plate, one end oli the tumbler engaging the lug of the operating-plate, a spring carried by the lock-plate, one end of the spring engaging an end of the tumbler to keep the same normally in engagement with the lug of the operatingplate, while the opposite end of the spring engages the lug of the pawl to leep said paWl normally in engagement with the periphery ot' the operating-plate.

7. In combination, a locling-plate, a iiange thereon, a spindle extending through the plate, a latch carried by the spindle, a spring, a lug on the spring intermcdiateitslength mounted in the loch-plate, said spring having' one portion bearing on the latch and another portion bearing against the flange of the lock-plate and an operating-plate carried by the spindle.

In testimony whereoiI I have signed my name to this application in the presence of two subscribing witnesses.

GARMIN() SALVIOLO.

Witnesses:

FREDA Soi'iun'rz, (li-nis. H. DAvIDs. 

